Suggest you not use the video capabilities of your D90 for anything mission critical, like your daughter’s wedding or God forbid a customer. The video from good still cameras is highly compressed to about 1.5 mbps compared to consumer camcorders at 15 to 25 mbps. Editing and recompressing video from any still camera will produce quality much lower than most any consumer camcorder. You can buy a Mini DV camcorder for about $250.